I'm looking for a 12 bolt posi rear end for my 65 goat with gears in the 3.73 / 3.50 range. Inside measurements between backing plates is 53.5 inches. I undeerstand that there were different GM car models in that vintage that used the same rear end, Chevell, Olds 442 ect. Does anyone have one of these they would not mind parting with.
